When I was at Berkeley, the framework of quantum field theory could calculate the dynamics of electromagnetism. It could roughly describe the motion of the weak nuclear force, radiation. But it hit a brick wall with the strong interaction, the binding force.

Certainly it may, under present imperfect conditions, often be a duty not to destroy the outward form of marriage for the sake of the children. But by no means can this duty be preached as universally binding.

In 2004, President Bush gave Prime Minister Sharon certain guarantees about American policy, but the Obama administration treated those as a kind of private letter having no binding policy impact.

We must ensure that more binding, durable, and enforceable fiscal rules go hand-in-hand with funding certainty for countries pursuing sound and sustainable economic policies. We need to keep pushing forward towards a comprehensive solution to the challenges of the eurozone.

In most of the European countries - France stands out in its resistance to this particular form of American cultural imperialism - the national film industries were forced onto the defensive after the war by such binding agreements.

Physical intimacy is emotionally binding. But there are lots of different sins.

There should be resolutions adopted in top international institutions, which are binding on all states and governments in the world, to forbid the defamation of religions.

And the annual meetings of the League's Assembly are in effect official peace congresses binding on the participating states to an extent that most statesmen a quarter of a century ago would have regarded as utopian.

Batters are made by combining some sort of flour - usually wheat flour, though cornstarch and rice flour are not uncommon - with a liquid and optional leavening or binding ingredients, like eggs and baking powder.